﻿/****************************************************************************************
*	Mouzetrap - client/server framework	
*
*	$HeadURL: http://mouzetrap.googlecode.com/svn/trunk/Mouzetrap/MethodExtensions.cs $
*	$Id: MethodExtensions.cs 11 2009-06-11 09:10:25Z tobz@fallenrealms.net $
* 
*	Copyright (c) 2008 Toby Lawrence
* 
*	Permission is hereby granted, free of charge, to any person obtaining a copy
*	of this software and associated documentation files (the "Software"), to deal
*	in the Software without restriction, including without limitation the rights
*	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
*	copies of the Software, and to permit persons to whom the Software is
*	furnished to do so, subject to the following conditions:
* 
*	The above copyright notice and this permission notice shall be included in
*	all copies or substantial portions of the Software.
* 
*	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
*	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
*	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
*	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
*	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
*	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
*	THE SOFTWARE.
* 
****************************************************************************************/

using System;
using System.Xml.Linq;

namespace Mouzetrap
{
	public static class MethodExtensions
	{
		public static bool InheritsFromType(this Type childType, Type parentType)
		{
			return parentType.IsAssignableFrom(childType);
		}

		public static T GetAttributeValue<T>(this XElement element, string name) where T : IConvertible
		{
			T value = default(T);

			XAttribute attrib = element.Attribute(name);

			if(attrib == null)
			{
				return value;
			}

			// try to cast to the proper type. if we can't, no good.
			try
			{
				value = (T) Convert.ChangeType(element.Value, typeof(T));
			}
			catch(Exception)
			{
			}

			return value;
		}
	}
}